JP6979875B2 - チクングニヤウイルスの抗体媒介性中和 - Google Patents
チクングニヤウイルスの抗体媒介性中和 Download PDFInfo
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Description
本開示は、概して、医学、感染症、および免疫学の分野に関する。より詳細には、本開示は、チクングニヤウイルスを中和する抗体に関する。
チクングニヤウイルス(CHIKV)は、トガウイルス科のアルファウイルス属に属するエンベロープ型のプラス鎖(positive−sense)RNAウイルスであり、ヤブカ属(Aedes)の蚊によって伝播される。成熟CHIKVビリオンは、前駆体ポリタンパク質p62−E1からタンパク質分解的切断により生じる2つの糖タンパク質E1およびE2を含む。E2はウイルス付着において機能し、一方E1は膜融合を媒介してウイルスが侵入できるようにする(非特許文献1)。ヒトでは、CHIKV感染は発熱と関節痛を引き起こし、これらは重症である場合もあり、また場合によっては何年も続く(非特許文献2、非特許文献3、非特許文献4)。CHIKVは、アフリカのサハラ以南の大部分の地域で、そしてアジア、ヨーロッパ、ならびにインド洋および太平洋の一部の地域においても大発生を引き起こしている。2013年12月、セント・マーチン島において現地性症例が同定され、西半球で最初のCHIKVの伝播が発生した(非特許文献5)。ウイルスは、カリブ海の実質的に全ての島、そして中央、南、および北アメリカにも急速に広まった。1年足らずで、西半球において100万例を超えるCHIKVの疑い例が報告され、米国を含む40を超える国において地域性伝播が記録された(非特許文献6)。現在のところ、CHIKV感染の予防または治療のための認可ワクチンも抗ウイルス療法もない。
本発明者らは、細胞培養物においてCHIKV感染性を中和するヒトmAbの広範なパネルを単離し、そして、致死量のCHIKVを接種した(I型インターフェロン受容体欠損)Ifnar−/−マウスを、感染後60時間後になってから投与を行った場合でさえ、成功裡に治療することができた。本発明者らは、CHIKV感染を広範に超高活性で中和するmAbが認識するための主要抗原部位としてE2のAドメインを同定し、阻害の主要メカニズムが融合の阻止であることを示した。本開示のこれらおよび他の態様を以下に詳細に記載する。
チクングニヤ熱はチクングニヤウイルスによって引き起こされる感染症である。通常2〜7日間持続する急性の発熱、および、典型的には数週間または数ヶ月、場合によっては数年間続く関節痛を特徴とする。死亡率は1000人に1人弱であり、高齢者が死亡する可能性が最も高い。ウイルスはヤブカ属の2種の蚊:ヒトスジシマカ(A.albopictus)およびネッタイシマカ(A.aegypti)によってヒトに伝達される。動物のウイルス保有宿主としては、サル類、鳥類、ウシ、およびげっ歯類が挙げられる。これは、霊長類のみが宿主であるデング熱とは対照的である。
であり、不完全1型インターフェロン欠損マウスには何ら症状は無かった。
A.一般的方法
チクングニヤウイルスに結合するモノクローナル抗体にはいくつかの用途があることが理解されるであろう。これらの用途としては、チクングニヤウイルス感染の検出および診断、ならびにその処置に使用するための診断キットの製造が挙げられる。このような状況では、このような抗体を診断薬または治療薬に連結させて捕捉剤もしくは競合アッセイにおける競合剤として使用するか、または、追加の薬剤をそれらに結合させずに個別に使用することができる。以下でさらに検討するように、抗体を変異または改変させることもできる。抗体を調製する方法および特徴付ける方法は当技術分野でよく知られている(例えば、Antibodies:A Laboratory Manual、Cold Spring Harbor Laboratory、1988;米国特許第4,196,265号を参照されたい)。
本開示に係る抗体は、第1の例では、その結合特異性によって規定することができ、この場合の結合特異性は、チクングニヤウイルス糖タンパク質(GP)に対するものである。当業者であれば、当業者によく知られている技術を用いて所与の抗体の結合特異性/親和性を評価することにより、該抗体が本請求項の範囲内に入るかどうかを決定することができる。一態様では、表3および表4にそれぞれ示した重鎖および軽鎖由来のクローン対CDRを有するモノクローナル抗体が提供される。そのような抗体は、本明細書に記載の方法を使用して、実施例の項で後述するクローンにより産生することができる。
様々な実施形態において、発現の改善、交差反応性の改善、またはオフターゲット結合の低減などの様々な理由で、同定された抗体の配列を操作することを選択することができる。以下は、抗体工学の関連技術の一般的な考察である。
一本鎖可変フラグメント(scFv)は、短い(通常はセリン、グリシン)リンカーで連結された免疫グロブリンの重鎖および軽鎖の可変領域の融合体である。このキメラ分子は、定常領域が除去されかつリンカーペプチドが導入されているにもかかわらず、元の免疫グロブリンの特異性を保持している。この改変は、通常、特異性は変化させずに残す。これらの分子は、歴史的には、抗原結合ドメインを単一ペプチドとして発現することが非常に好都合であるファージディスプレイを容易にするために生み出されたものである。あるいは、scFvは、サブクローニングされたハイブリドーマ由来の重鎖および軽鎖から直接作り出すこともできる。一本鎖可変フラグメントは、完全抗体分子中に見られる定常Fc領域を欠いており、そのため抗体を精製するために使用される共通の(例えば、プロテインA/Gの)結合部位を欠いている。プロテインLはカッパ軽鎖の可変領域と相互作用するため、これらのフラグメントは、多くの場合、プロテインLを用いて精製/固定することができる。
特定の実施形態では、抗体は、細胞内での作用に適した組換え抗体であり、このような抗体は「イントラボディ」として知られている。これらの抗体は、細胞内タンパク質輸送を改変する、酵素機能を妨げる、およびタンパク質−タンパク質またはタンパク質−DNA相互作用を遮断するなどの様々なメカニズムにより標的機能を妨げ得る。それらの構造は、多くの点で、上述の一本鎖抗体および単一ドメイン抗体の構造の模倣であるか、またはそれらと同等である。実際、単一転写物/一本鎖であることは、標的細胞における細胞内発現を可能にする重要な特徴であり、また、細胞膜を介したタンパク質輸送もより実現可能となる。ただし、他の特徴も必要である。
特定の実施形態では、本開示の抗体を精製してもよい。本明細書で使用される場合、「精製された」という用語は、他の成分から単離可能であり、タンパク質がその自然に得られる状態に対して任意の程度まで精製されている組成物を指すことが意図される。したがって、精製されたタンパク質とは、それが元々存在していた環境を含まないタンパク質も指す。「実質的に精製された」という用語が使用される場合、これは、該タンパク質またはペプチドが組成物の主要成分を形成する、例えば、組成物中のタンパク質の約50%、約60%、約70%、約80%、約90%、約95%、またはそれ以上を構成するような組成物を指すことになる。
A.製剤および投与
本開示は、抗チクングニヤウイルス抗体およびそれを生成するための抗原を含む医薬組成物を提供する。そのような組成物は、予防もしくは治療有効量の抗体もしくはそのフラグメント、またはペプチド免疫原と、および医薬として許容される担体とを含む。特定の実施形態では、「医薬として許容される」という用語は、連邦政府または州政府の規制機関によって承認されているか、または、米国薬局方、もしくは動物、特にヒトにおける使用のための一般に認められている薬局方に記載されていることを意味する。「担体」という用語は、医薬と共に投与される希釈剤、賦形剤、またはビヒクルを指す。このような医薬担体は、滅菌液、例えば、水、および、石油、動物、植物、合成物由来のものなどの油(例えば、ピーナッツ油、大豆油、鉱油、ごま油など)であり得る。水は、特に、医薬組成物が静脈内投与される場合の担体である。また、生理食塩水、ならびにデキストロース水溶液およびグリセリン水溶液も、液体担体として、特には注射液用に使用することができる。他の好適な医薬賦形剤としては、デンプン、グルコース、ラクトース、スクロース、ゼラチン、麦芽、米、小麦粉、白亜、シリカゲル、ステアリン酸ナトリウム、グリセリンモノステアレート、タルク、塩化ナトリウム、乾燥スキムミルク、グリセリン、プロピレングリコール、水、エタノールなどが挙げられる。
本開示の抗体を少なくとも1つの薬剤に連結させて抗体コンジュゲートを形成することができる。診断薬または治療薬としての抗体分子の効力を高めるために、慣習的には、少なくとも1つの所望の分子または部分構造を連結または共有結合または複合化させる。そのような分子または部分構造は、これに限定されるものではないが、少なくとも1つのエフェクター分子またはレポーター分子であり得る。エフェクター分子は、所望の活性、例えば細胞傷害活性を有する分子を含む。抗体に付着しているエフェクター分子の非限定的な例としては、毒素、抗腫瘍薬、治療用酵素、放射性核種、抗ウイルス剤、キレート剤、サイトカイン、成長因子、およびオリゴまたはポリヌクレオチドが挙げられる。対照的に、レポーター分子は、アッセイを用いて検出することができる任意の部分構造と定義される。抗体にコンジュゲートされているレポーター分子の非限定的な例としては、酵素、放射性標識、ハプテン、蛍光標識、燐光分子、化学発光分子、発色団、光親和性分子、着色粒子、またはビオチンなどのリガンドが挙げられる。
よりさらなる実施形態では、本開示は、チクングニヤウイルスおよびその関連抗原に結合、またはそれらを精製、除去、定量化するための、あるいは一般的に検出するための免疫検出方法に関する。このような方法は従来の意味で適用することもできるが、他の使用としては、ワクチンおよび他のウイルスストックの品質管理およびモニタリングにおける使用であり、この場合、本開示に係る抗体を、ウイルス中のHI抗原の量または完全性(すなわち、長期安定性)を評価するために使用することができる。あるいは、該方法を用いて、様々な抗体を適切な/所望の反応性プロファイルについてスクリーニングすることができる。
イムノアッセイは、最も単純で直接的な意味では、結合アッセイである。特定の好ましいイムノアッセイは、当技術分野で知られている様々なタイプの酵素結合免疫吸着アッセイ(ELISA)およびラジオイムノアッセイ(RIA)である。組織切片を用いた免疫組織化学的検出も特に有用である。しかしながら、検出はこのような技術に限定されず、ウェスタンブロッティング、ドットブロッティング、FACS解析なども用いることができることは容易に理解されるであろう。
ウェスタンブロット(あるいは、タンパク質イムノブロット)は、所与の組織ホモジネートまたは抽出物のサンプル中の特定のタンパク質を検出するために使用される分析技術である。これは、ゲル電気泳動を用いて、ポリペプチドの長さ(変性条件)またはタンパク質の3−D構造(天然/非変性条件)により天然または変性タンパク質を分離する。次いで、タンパク質を膜(典型的にはニトロセルロースまたはPVDF)に移行させ、そこで該タンパク質を、標的タンパク質に特異的な抗体を用いてプローブ(検出)する。
また本開示の抗体は、免疫組織化学(IHC)による研究のために作製された新鮮凍結組織ブロックおよび/またはホルマリン固定、パラフィン包埋組織ブロックのいずれとも組み合わせて用いることもできる。これらの粒子標本から組織ブロックを作製する方法は、これまでの様々な予後因子のIHC研究において成功裡に使用されており、当業者によく知られている(Brownら、1990;Abbondanzoら、1990;Allredら、1990)。
なおさらなる実施形態では、本開示は、上記の免疫検出法と共に使用するための免疫検出キットに関する。抗体はチクングニヤウイルスまたはチクングニヤウイルス抗原の検出に用いることができるため、該抗体をキットに含めることができる。したがって、免疫検出キットは、好適な容器手段中に、チクングニヤウイルスまたはチクングニヤウイルス抗原に結合する第1の抗体、および場合により免疫検出試薬を含むこととなる。
以下の実施例は、好ましい実施形態を示すために含まれる。当業者であれば、以下の実施例に開示された技術は、本発明者らが、実施形態の実施において良好に機能することを発見した技術を表すものであり、したがって、その実施のための好ましい様式を構成するものとみなすことができることを理解されるはずである。しかしながら、当業者であれば、本開示に照らして、開示されている特定の実施形態において様々な変更を行うことができ、それでもなお、本開示の精神および範囲から逸脱することなく、同様のまたは類似の結果が得られることを認識するはずである。
ヒトmAbの単離。スリランカで記録された症候性CHIKV感染の約5年後のヒトからPBMCを得た。B細胞をCpGの存在下でEBVを含む384−ウェルプレートで形質転換した。得られたB細胞リンパ芽球細胞株由来の上清を、抗原として生CHIKVワクチン株181/25ウイルスを用いたELISAによってヒトCHIKV特異的結合抗体の存在についてスクリーニングした。形質転換B細胞を収集し、骨髄腫細胞株に融合させ、培養プレートに分配して増殖させ、ウアバインを含むヒポキサンチン−アミノプテリン−チミジン培地中で増殖させることにより選択した。ハイブリドーマを単一細胞ソーティングによりクローニングした。無血清培地中で増殖しているクローン化ハイブリドーマ由来の上清を収集し、清澄化培地からプロテインGクロマトグラフィーを用いて精製および濃縮した。
CHIKV特異的ヒトmAbの単離。本発明者らは、2006年にスリランカでCHIKV感染を獲得し、発熱、関節痛、および発疹を呈した1人の個体から、mAbのパネルを単離した(図4)。臨床経過およびB細胞形質転換およびスクリーニング手順は、Online Methodsに記載されている。本発明者らは、自然感染後5年半のドナーから採取した単一の血液サンプルから2つの別々の実験でB細胞を形質転換した。本発明者らは、全B細胞1,000個中約1個の発生率でウイルス特異的B細胞を認め、B細胞株からウイルスに結合する抗体を分泌する30個の安定したハイブリドーマを樹立した。mAbのパネルは、24個のIgG1、3個のIgG2、および2個のIgG3と、ハイブリドーマの増殖が不良であったために決定されなかった1つとを含む複数のサブクラスのIgGを含んでいた(表5)。
本発明者らは、その大部分がCHIKV E2タンパク質を認識し、インビトロで顕著な中和活性を、そしてインビボで治療効力を示す、単一個体由来の天然のヒトmAbの多様なパネルを単離したことを報告する。クラスとしては、最も阻害活性の高い抗体は広範な活性も示し、現在カリブ海においてまん延している株を含めた、3つのCHIKV遺伝子型全てのウイルスを中和した。本試験において単離されたヒトCHIKV特異的mAbの大部分は、100ng/mL未満の濃度でウイルスを中和し、多くは10ng/mL未満で阻害活性を示した。この活性は、本発明者らが、HI、H2、H3、またはH5インフルエンザウイルス(Hongら、2013;Krauseら、2012;Krauseら、2011a;Krauseら、201lb;Krauseら、2010;Thomburgら、2013;Yuら、2008)、デングウイルス(Messerら、2014;Smithら、2013a;Smithら、2014;Smithら、2013b;Smithら、2012)などを含めた他の病原性ヒトウイルスに対するヒトmAbの以前の研究において観察した活性より高活性である。多くのヒトCHIKVmAbの効力は、追加免疫の繰り返しおよび親和性成熟の後に生じたその種で最高のマウスの中和性CHIKVmAbの能力に匹敵するかそれを上回る(Fongら、2014;Fricら、2013;Palら、2013;Warterら、2011)。CHIKVに対する他の中和性ヒトmAbの大部分は効力がかなり低い(Fongら、2014;Selvarajahら、2013;Warterら、2011)。既に報告されているヒトCHIKV特異的mAbのうちただ1つ(IM−CKV063)が、本明細書において報告した超高効力の中和性mAbに匹敵する活性を示す(Fongら、2014)。
たは一連の工程に変更を適用することができることは当業者には明らかであろう。より具体的には、本明細書に記載の薬剤を、同一または類似の結果を達成しつつ、化学的にも生理学的にも関連した特定の薬剤で置き換えることができることは明らかであろう。当業者に明らかなこのような類似代替物および変更は全て、添付の特許請求の範囲によって規定される本開示の精神、範囲、および概念の範囲内であるとみなされる。
本明細書中に示したものを補足する例示的な手順またはその他の詳細を提供する範囲で、以下の参考文献を、参照により本明細書に具体的に組み入れる。
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Claims (22)
- チクングニヤウイルスのE2エクトドメインに結合する単離および/または組換えモノクローナル抗体であって、該抗体または抗体フラグメントは、以下に記載のクローン対重鎖および軽鎖CDR配列:
配列番号103からなるCDRH1、配列番号104からなるCDRH2、配列番号105からなるCDRH3、配列番号187からなるCDRL1、配列番号188からなるCDRL2、および配列番号189からなるCDRL3;
を含む、前記単離および/または組換えモノクローナル抗体。 - 前記抗体または抗体フラグメントは、以下に記載のクローン対軽鎖および重鎖可変配列:
配列番号3の軽鎖可変配列、および配列番号2の重鎖可変配列;
によってコードされる、請求項1に記載の単離および/または組換えモノクローナル抗体。 - 抗体または抗体フラグメントは、請求項2に記載のクローン対配列に対して少なくとも90%の同一性を有する軽鎖および重鎖可変配列によってコードされる、請求項1に記載の単離および/または組換えモノクローナル抗体。
- 抗体または抗体フラグメントは、請求項2に記載のクローン対配列に対して少なくとも95%の同一性を有する軽鎖および重鎖可変配列によってコードされる、請求項1に記載の単離および/または組換えモノクローナル抗体。
- 前記抗体または抗体フラグメントは、以下に記載のクローン対軽鎖および重鎖可変配列:
配列番号53を含む若しくはからなる重鎖可変領域、および配列番号54を含む若しくはからなる軽鎖可変領域;
を含む、請求項1に記載の単離および/または組換えモノクローナル抗体。 - 抗体または抗体フラグメントは、請求項5に記載のクローン対配列に対して95%の同一性を有する軽鎖および重鎖可変配列を含む、請求項1に記載の単離および/または組換えモノクローナル抗体。
- 前記抗体フラグメントは、組換えScFv(一本鎖可変フラグメント)抗体、Fabフラグメント、F(ab’)2フラグメント、またはFvフラグメントである、請求項1に
記載の単離および/または組換えモノクローナル抗体。 - 前記抗体はキメラ抗体であるか、または糖タンパク質以外のチクングニヤウイルス抗原を標的とする二重特異性抗体である、請求項1に記載の単離および/または組換えモノクローナル抗体。
- 前記抗体はIgGである、請求項1に記載の単離および/または組換えモノクローナル抗体。
- 前記抗体または抗体フラグメントは細胞浸透性ペプチドをさらに含む、および/またはイントラボディである、請求項1に記載の単離および/または組換えモノクローナル抗体。
- 請求項1〜10のいずれか1項に記載の単離および/または組換え抗体または抗体フラグメントをコードするハイブリドーマ。
- 対象におけるチクングニヤウイルス感染を検出する方法であって:
(a)前記対象由来のサンプルを、請求項1〜10のいずれか1項に記載の単離および/または組換え抗体または抗体フラグメントと接触させること;および
(b)前記サンプル中のE2に前記抗体または抗体フラグメントを結合させることによって、前記サンプル中のチクングニヤウイルス糖タンパク質E2を検出すること;
を含む、前記方法。 - 前記サンプルは体液である、請求項12に記載の方法。
- 2回目の工程(a)および(b)を実行すること、ならびに、1回目のアッセイと比較してE2レベルの変化量を測定することをさらに含む、請求項12に記載の方法。
- 対象におけるチクングニヤウイルスの感染の処置または予防における使用のための、請求項1〜10のいずれか1項に記載の単離および/または組換え抗体または抗体フラグメントを含む、医薬。
- 前記単離されたおよび/または組換え抗体または抗体フラグメントは感染前に投与される、請求項15に記載の医薬。
- 前記単離および/または組換え抗体または抗体フラグメントは感染後に投与される、請求項15に記載の医薬。
- 前記単離および/または組換え抗体または抗体フラグメントが投与される、または該抗体もしくは抗体フラグメントをコードするRNAもしくはDNA配列もしくはベクターによる遺伝子送達を含む、請求項15に記載の医薬。
- 請求項1〜10のいずれか1項に記載の単離および/または組換えモノクローナル抗体または抗体フラグメントを含む、チクングニヤウイルスの感染の処置または予防のための
医薬組成物。 - 請求項1〜10のいずれか1項に記載の単離および/または組換えモノクローナル抗体または抗体フラグメントを産生する細胞株。
- 請求項1〜10のいずれか1項に記載の単離および/または組換えモノクローナル抗体または抗体フラグメントを生産する方法であって、以下の工程:
(a)前記単離および/または組換えモノクローナル抗体または抗体フラグメントを産生する細胞株を培養する;
(b)産生された単離および/または組換えモノクローナル抗体または抗体フラグメントを精製する;および、場合により
(c)前記単離および/または組換えモノクローナル抗体または抗体フラグメントを医薬組成物中に製剤化する;
を含む、前記方法。 - 請求項1〜10のいずれか1項に記載の単離および/または組換えモノクローナル抗体または抗体フラグメント、および場合により包装材料を含むキット。
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JP2022137389A Active JP7536059B2 (ja) | 2015-04-14 | 2022-08-31 | チクングニヤウイルスの抗体媒介性中和 |
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EP (1) | EP3283101A4 (ja) |
JP (3) | JP6979875B2 (ja) |
KR (2) | KR20230087616A (ja) |
CN (2) | CN114478756B (ja) |
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AU (2) | AU2016250188C1 (ja) |
BR (1) | BR112017021952A2 (ja) |
CA (2) | CA3176525A1 (ja) |
CL (1) | CL2017002596A1 (ja) |
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HK (1) | HK1246671A1 (ja) |
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MA (1) | MA41517A (ja) |
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NZ (2) | NZ736445A (ja) |
PE (2) | PE20180171A1 (ja) |
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SG (2) | SG10202107295XA (ja) |
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Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US11286295B2 (en) | 2016-10-20 | 2022-03-29 | Sanofi | Anti-CHIKV monoclonal antibodies directed against the E2 structural protein |
KR102029394B1 (ko) * | 2017-11-14 | 2019-10-07 | 재단법인 바이오나노헬스가드연구단 | 치쿤구니아 바이러스 감염 진단용 단일클론항체, 이를 생산하는 하이브리도마 및 이를 이용한 치쿤구니아 바이러스 감염 진단 방법 |
MA51523A (fr) | 2018-01-05 | 2020-11-11 | Modernatx Inc | Polynucléotides codant pour des anticorps anti-virus du chikungunya |
EP3735589A2 (en) * | 2018-01-05 | 2020-11-11 | Vanderbilt University | Antibody-mediated neutralization of chikungunya virus |
JP7359390B2 (ja) * | 2018-02-09 | 2023-10-11 | 国立大学法人大阪大学 | チクングニアウイルスに対する抗体またはその抗原結合断片、およびその用途 |
JP6906207B2 (ja) * | 2018-02-09 | 2021-07-21 | 国立大学法人大阪大学 | チクングニアウイルス検出用免疫クロマト分析装置 |
US20220265806A1 (en) * | 2018-06-06 | 2022-08-25 | Albert Einstein College Of Medicine, Inc | Antibodies or antibody-fragments thereof targeting alphaviruses, and compositions and methods comprising same |
WO2021042021A1 (en) * | 2019-08-31 | 2021-03-04 | Vanderbilt University | Human antibodies to alphaviruses |
KR102202082B1 (ko) * | 2019-09-25 | 2021-01-11 | 충북대학교 산학협력단 | 치쿤군야 바이러스의 외피단백질 도메인 ⅱ에 대해 특이적으로 결합하는 단일클론항체, 이를 생산하는 하이브리도마 세포주 및 이의 용도 |
CN110922478B (zh) * | 2019-12-07 | 2021-07-30 | 中国人民解放军军事科学院军事医学研究院 | 针对特异表位的抗基孔肯雅热的全人源单克隆抗体及应用 |
WO2022101805A1 (en) * | 2020-11-13 | 2022-05-19 | Emergent Biosolutions Canada Inc. | Hyperimmune globulins for treatment of chikungunya virus infections |
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WO2008026225A2 (en) * | 2006-09-01 | 2008-03-06 | Bharat Biotech International Limited | A vaccine for chikungunya virus infection |
CA2598966A1 (en) * | 2007-09-07 | 2009-03-07 | Institut Pasteur | Anti-chikungunya monoclonal antibodies and uses thereof |
CA2732003A1 (en) * | 2008-07-31 | 2010-02-04 | James D. Marks | Antibodies that neutralize botulinum neurotoxins |
WO2011124635A1 (en) * | 2010-04-07 | 2011-10-13 | Humalys | Binding molecules against chikungunya virus and uses thereof |
US9902765B2 (en) | 2013-07-19 | 2018-02-27 | Integral Molecular, Inc. | Antibodies against chikungunya virus and uses thereof |
US11286295B2 (en) * | 2016-10-20 | 2022-03-29 | Sanofi | Anti-CHIKV monoclonal antibodies directed against the E2 structural protein |
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